From c2808f39d1b9f13d362a465ee3687022b51f6b40 Mon Sep 17 00:00:00 2001
From: drh <>
Date: Sat, 2 Apr 2022 22:47:47 +0000
Subject: Expand the getVarint32() macro in a few places, as the C-compiler
 seems to be able to optimize better when that macro is expanded manually.

FossilOrigin-Name: cd4fe34b98bf5ce26f3596c717edb73932f3b46ad6e9b4934d06b7b3c176a0d6
---
 src/vdbe.c    |  6 +++++-
 src/vdbeaux.c | 14 +++++++++++---
 2 files changed, 16 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/vdbe.c b/src/vdbe.c
index c66680220..bb23757d6 100644
--- a/src/vdbe.c
+++ b/src/vdbe.c
@@ -2739,7 +2739,11 @@ op_column_restart:
       assert( pC->szRow<=65536 );  /* Maximum page size is 64KiB */
     }
     pC->cacheStatus = p->cacheCtr;
-    pC->iHdrOffset = getVarint32(pC->aRow, aOffset[0]);
+    if( (aOffset[0] = pC->aRow[0])<0x80 ){
+      pC->iHdrOffset = 1;
+    }else{
+      pC->iHdrOffset = sqlite3GetVarint32(pC->aRow, aOffset);
+    }
     pC->nHdrParsed = 0;
 
     if( pC->szRow<aOffset[0] ){      /*OPTIMIZATION-IF-FALSE*/
diff --git a/src/vdbeaux.c b/src/vdbeaux.c
index aa45cae54..8fdd85abb 100644
--- a/src/vdbeaux.c
+++ b/src/vdbeaux.c
@@ -4419,14 +4419,22 @@ int sqlite3VdbeRecordCompareWithSkip(
   ** two elements in the keys are equal. Fix the various stack variables so
   ** that this routine begins comparing at the second field. */
   if( bSkip ){
-    u32 s1;
-    idx1 = 1 + getVarint32(&aKey1[1], s1);
+    u32 s1 = aKey1[1];
+    if( s1<0x80 ){
+      idx1 = 2;
+    }else{
+      idx1 = 1 + sqlite3GetVarint32(&aKey1[1], &s1);
+    }
     szHdr1 = aKey1[0];
     d1 = szHdr1 + sqlite3VdbeSerialTypeLen(s1);
     i = 1;
     pRhs++;
   }else{
-    idx1 = getVarint32(aKey1, szHdr1);
+    if( (szHdr1 = aKey1[0])<0x80 ){
+      idx1 = 1;
+    }else{
+      idx1 = sqlite3GetVarint32(aKey1, &szHdr1);
+    }
     d1 = szHdr1;
     i = 0;
   }
-- 
cgit v1.2.3